What was your worst experience with food?

I've ended up in the ER with food poisoning twice, from two different delis. Worst $2000 sandwich cries in US

Ate sushi on a date.
Shit my pants while we were walking afterwards. The other guy was a champ, we still hooked up afterwards.
A different time I was eating a fried chicken sandwich and the very last bite was100% raw and cold like it was sticking out of the fryer. The restaurant made me a brand new one for free. Ate that one and it was good. Didn't get sick.

Years ago. Client on-site meeting had run long past lunch. Was in a hurry to drive back home and beat the traffic. It was 1-hour normally, but 2-3x during rush hour.
Saw a sign for a 'natural' market. Pulled in. They had an open-face cooler with prepackaged foods and drinks. Sandwiches looked a bit stale. Grabbed a 'Fresh Vietnamese Shrimp Spring Roll' and a drink. Hopped on the freeway. Ate in the car.
Never Again.
PS: Still got stuck in traffic.

I got food poisoning in high school. I was exhausted and unable to keep anything down for several days.
The first day that I started feeling better, I actually felt great! In fact, I woke up starving. I went downstairs and had a generous breakfast. Then my parents told me we had to take down a tree in the backyard. They asked if I was feeling up for it, and I was... right up until I was 15 ft in the air, sawing away at a branch. Suddenly, I realized that generous meal had decided to keep on giving. I said "Hey, I'm not feeling great. I'm going to climb down." I made it one branch before I knew this wasn't going to wait. I gave the best warning I could to those below, and I held on as my stomach gave the ol' heave-ho.
Fortunately, all the cutting I had been doing generated plenty of sawdust, so it practically cleaned itself. I think we decided the rest of the project could wait for another day, though.
When it comes to recovery, take it slow, folks...
- When it comes to recovery, take it slow, folks…
  Someone should tell my 3 employers

Years ago I went to a small bar within walking distance of my place to watch a couple games with friends. There was a beer rep there for one of the big brewers debuting some new seltzer flavors, but no one was interested. I felt bad and the game wasn't terribly interesting so I talked with him and over the course of 4-5 hours ended up drinking ~8 different flavors of fall themed seltzers (e.g., sour apple, cinnamon, pumpkin, flannel(?!)). A few included a shot of vodka. It was all free so I wasn't saying no and ended up quite drunk.
 
The bar was also hosting a fish fry that day and the bartender brought over the leftover fish after the party left and offered it to everyone. In retrospect, this must have been sitting out for hours, but in my drunken state it was ambrosia from heaven and I ate a couple fillets and a bunch of shrimp and walked home.
 
The next day I was violently hungover and had food poisoning. It was the worst I have ever felt by a wide margin. The absolutely abominable combination of seafood and potpourri flavored alcohol made it an exquisitely miserable experience
- OH GOD fall themed seltzers and leftover fish. What were you thinking.
  
  Oh, I wasn't thinking at all. It was a mistake my body won't let me make again though.

I picked and ate a leaf of what I thought was wild garlic but it wasn't. It felt like a bomb had gone off in my mouth. I sprinted home and washed my mouth out with everything I had, including wine and 51 pastis but nothing helped.
No permanent damage afaict.

Got food poisoning at Subway. It was years before I could even walk by one without getting nauseous. I got adventurous and tried it again one day, got sick again. Safe to say I don't go there anymore.

Was on holiday a few years ago and came down with food poisoning a couple of hours before catching the flight home.
I was vomiting every 30 mins like clockwork. In the taxi to the airport, while queueing at the airport, on the flight, while heading home at the other side. Just awful. I'd never been that ill before or since.
Vomited subsided after the first day but couldn't eat much for a couple of days after otherwise it was back to square one. Was heavily fatigued for about a week after.
I won't say what country I was in or the specific dish I suspect made me ill, but I will say i think it was a chicken casserole-type dish I had 36hrs prior. Its served in a signature pot and the restaurant was busy. Having worked in kitchens in a former life I think they re-used the pot and leftovers from another customer and just topped it off. That or the chicken was bad.

Had a 5 cheese Stromboli. Nothing was wrong with it but I did find out my lactose intolerance had advanced from stomachaches and gas to full on diarrhea.

The coffee I made in School. I was allowed to use the Teachers Machine but my coffee Pads got Bakteria or smth by storing them in high Humid places without closing it.
The taste was horrible of the coffee but I was just adding more sugar.... it still tasted weeird. I still had two of them because of an exam..
I felt like dying, by vomiting 30 times and needing to go to ambulance. It took a few hours and insulation, till I was allowed to go Home at 4am. I couldnt even move so weak I was over time, but probably it was because of the Drugs and panic of the assistance. She just asked me how much I got of this stuff and I just didnt know, so she gave me the same stuff again. Felt like doubling down on the drug with insulation. I think it was pain relieving.

I threw up during pregnancy once when I had just had OJ and brussel sprouts. It was years before I could take even a sip of orange juice without feeling nauseated all over again.

I had symptoms of campylobacter. It was fast food chicken so I brought it on myself. Two weeks of spraying yellow liquid out of my ass approximately 20 min after eating.

18 yo, senior year. Went to the house where the mom stocked lots of junk food for the teens who hung out there (it was a party house, the sort where she looked the other way to keep us from getting arrested by being out and about).
Got super high. Microwaved some chicken wings. Took a couple bites before realizing that though they were breaded, they were not cooked. Went in the backyard and stuck my fingers down my throat. Was in fear of food poisoning but got lucky. Never breathed a word about it to my friends.

One time, I had a dream where I was eating something (I totally forget what it was), and the smell and taste was like the most putrid mix of vomit and sewage.
When I woke up, even though I hadn't actually eaten anything, that smell and taste sensation stuck with me all day. I had absolutely no appetite that day.
The very next day I was extra hungry, and the bacon, eggs and biscuit I had for breakfast tasted so damn good, it was almost as if I had never eaten an awesome meal before.

Visited an island near my hometown. It's not much of a tourist spot so there was only one hotel. We stayed overnight and had dinner and breakfast the next morning in the hotel. While on the boat on the way back to the mainland, I was feeling a little weird already. I thought I was just getting seasick so I brushed it off. When we got back, that's where I started puking and shitting alternately for the entire day, had a fever, and wasn't feeling good for the next 3 days. I don't even remember what we ate anymore, but that was definitely the worst.

Either that one time I had boiled ocra or when I yack'd across the room after eating a bowl of Grape Nuts cereal, which, as it turns out, was accompanied by a high fever.

An aunt used to make these lamb cakes for Easter. They always looked fantastic with the frosting and coconut, but they were surprisingly dense, and they tasted like they were made with lamb fat or something instead of butter.
I am food adventurous and will eat just about anything, but inedible doesn't begin to describe these cakes, and she had no clue they were terrible, so she kept making them for years.